<template>
   <div>
       <div class="sunzi">
            <span>我是孙子组件</span>
            <button @click="clickHandler">点击我给爷爷送3万元</button>
       </div>
  </div>
</template>

<script>
export default {
name:'',
methods:{
    clickHandler(){
        this.$bus.$emit('money',8888)
    }
}
}
</script>

<style scoped>
 .sunzi{
     width:300px;
     height: 100px;
     background: skyblue;
     margin: 20px 0px;
 }
</style>